Endless-track arrangement for vehicles



v(. HAGELLOCH. ENnLss TRACK AHRANGEMENT Fon vEHlcLEs.

` APPLICATION FILED SEPT. 3, 1.920.

'I G. HAGELLocH. f ENDLESS TRACK ARRANGEMENT FOR VEHICLES.

Arme/mp msn sarna. 1920.

Patented Aug. 9, 19421;',

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,ori-lcs GEORG HAGELIgOCH, 0F ESSEN, GERMANY, ASSIGNOR T0 FRIED. KRUPP AKTIENL. GESELLSCHAFT, OF ESSEN-ON-THE-RUHR, GERMANY.

Specification of Letters Patent.

GEMENT FOB lVEHIGIIIES.'

Application iled September 3, 1920. Serial No. 408,39?.

To all whom it may concern.'

Be it known that I, GEORG HAGELLooH, residing at Essen, Germany, a citizen of the German Republic have invented a certain new and useful mprovement in Endless- Track Arrangements for Vehicles, for which my legal representative, Fried. Krupp Aktiengesellschaft, has filed an application in Germany on December 9, 1918, of which the following is a specification.

This invention relates to that class of endless track arrangements for "vehicles, in which guide rollers are provided for that particular. part of the endless track, which is in contact with the ground, such guide rollers being so arranged that each roller is movable against the action of a spring, which presses them against the endless track.

The invention consists first and foremost in the fact that not only the guide rollers are elastically supported relatively to their carriers but that these latter are also elastically upported relatively to the frame of the veicle.

rlhe invention will be further'described with reference to the accompanying drawings, which show the invention as applied to an armored motor driven car.

Figure 1 is a side elevation of the motor car i Fig. 2 shows a portion of Fig. 1 on a larger scale, principally in section,

Fig. 3 is a section on the line 3--3 of Fig. 1 looking from the right and Fig. 4 is a section on the line 4-4 of Fig. 2.

The frame of the vehicle hastwo longitudinal bearers each consisting essentially of two cheeks A (see'particularly Figs. 3 and 4), in each of which two lon itudinal bearers are mounted the shaft of a driving wheel B1 (see Fig. 1) and the shafts C of guide rollers G1 for an endless track D. Other rollers E, which guide-that particular part of the endless track, which is in contact with the ground, are pivotally mounted on a carrier FY (see particularly Fig. 3), of substantially channel shape in transverse section and mounted between the two cheeks A. Between the carrier F, which is connected by a connecting rod L to the cheeks A and the cheeks A themselves arev interposed supporting springs G (see Figs.

tached to the carrier F by bolts. gf and connected by connecting rods g2 to bolts A1 carried in the cheeks A. The guide rollers E are pivotally mountedl in pairs on bolts K carried in the carrier F, and4 by means of bell crank levers H, J in which the spindles e1 of the pairs of rollers are carried. The bell crank levers H embrace byA means of eyes 71.1 (see Figs. 3 and 4) the boltsK on both sides of a common hub'ii1 (see Figs. 2, 3 and 4) of the bell crank levers J.

Between the free limbs of the bell crank levers H, J attached to each pair of rollers F, 1s interposed a previously stressed spherical sprmg M, which bears with one end against an abutment N (see Figs. 2 and 3),

mounted on the bell crank levers H, and

.. Patented Aug. 9, 1921. p

which is pivotally mounted on a bolt h2 I with its other end .fa ainst a shoulder p1 v (see Fig. 2) of a bolt ,which is pivoted to a bolt 'i2 mounted onthe bell crank levers J.

Stops h3, a (see Figs. 2 and 4) are provided `the bell drank levers H, J. 'A

The tension of the springs. M is so calculated with respect to lthe weight of the vehicle, that inthe case of a constant load the parts of the arrangement described assume the position shown in the drawing. When the vehicle is on the move and jolting occurs, the shocks are first absorbed by the springs M, and in the case of particularly violent shocks the springs G'interposed between the frame of the vehicle and the carrier F for the rollers also come into operation. The passage of the vehicle over obstacles s uch as stems'or trunks of trees,

stones, ditches and the like is greatl facili.

tated by the fact,.that each pair o rollers (E) can swing about the axis of the corresponding bolt in one direction or`the other, t e endless track D being provided for this purpose with such an amount fof slack that it is able to adapt itself to the inequalities of'fthe ground over which it passes. As the rollers E are permanently pressed by the springs M against the endless track, the track is prevented from slipping o the guide rollers, and in this way as uniform as possible a strain caused by loading is also insured of the several parts of the track.

Claims:

l. n an endless track vehicle, having guide rollers engaging that part of the endless track which is in contact with] the ground, a carrier for said rollers, levers pivoted in pairs to said carrier and carrying resem@ rier and the vehicle frame.

The foregoing specicaton signed at Essen, Germany, this 2nd day of June, 1920.

GEORG HAGELLOCH.

lln presence olf- HANS GorrsMANN, Josnr ULBERTZ. 

